What if a deity of such exists? I wouldn't think it'd have much impact on my life anyway. I'm not going to devote my life to worship a creator, regardless of its power. Maybe if I come across a physical manifestation of it then I'd show it about as much respect as I'd give any being.
I find it interesting when people of a faith try to find proof their their god is real, I thought they just had to believe in the existence without needing proof. After all, isn't that what having faith means?